DO NOT MERGE: Investigate memory leaks by inspecting heap

Dockerfile.template

@@ -86,6 +86,8 @@ COPY --from=journal /sysroot /
 # Copy mount script for mounting host partitions into container
 COPY mount-partitions.sh .
 
+COPY profile.sh .
+
 # Runtime dependencies
 RUN apk add --update --no-cache \
 	$NODE \

entry.sh

@@ -75,5 +75,5 @@ if [ "${LIVEPUSH}" = "1" ]; then
 	exec npx nodemon --watch src --watch typings --ignore tests -e js,ts,json \
 		--exec node -r ts-node/register/transpile-only src/app.ts
 else
-	exec node /usr/src/app/dist/app.js
+	exec node --heapsnapshot-signal=SIGUSR2 /usr/src/app/dist/app.js
 fi

profile.sh

@@ -0,0 +1,13 @@
+#!/bin/sh
+
+set -o errexit
+
+SUPERVISOR_PID=1
+# Snapshot interval in seconds (default: 3600s = 1h)
+INTERVAL="${INTERVAL:-3600}"
+
+# Send a SIGUSR2 signal to the supervisor process once every INTERVAL
+while true; do
+    kill -USR2 "${SUPERVISOR_PID}"
+    sleep "${INTERVAL}"
+done

test/lib/wait-for-it.sh

@@ -79,11 +79,19 @@ abort_if_not_ready() {
 	exit 1
 }
 
+abort_if_stopped() {
+	echo "Interrupted from external signal" >&2
+	kill "$timer_pid"
+	exit 1
+}
+
 # Trap the signal and start the timer if user timeout is greater than 0
 if [ "$timeout" -gt 0 ]; then
 	trap 'abort_if_not_ready' USR2
 	set_abort_timer "$timeout" $$ &
 	timer_pid=$!
+	# Fail if a signal stops the script
+	trap 'abort_if_stopped' INT TERM
 fi
 
 # Wait for docker